//获取连接参数
function getParameter(variable) {

    var query = window.location.search.substring(1);
    var vars = query.split("&");
    for (var i=0;i<vars.length;i++) {
        var pair = vars[i].split("=");
        if(pair[0] == variable){return pair[1];}
    }
    return "";
}

//定义StringBuffer
function StringBuffer(){
    this.content = new Array;
}

StringBuffer.prototype.append = function(str){
    this.content.push(str);
    return this ;
};

StringBuffer.prototype.toString = function(){
    return this.content.join("");
};